Connection method for sensors in buses in intelligent bus network

Abstract

The invention discloses a connection system for sensors in a bus in an intelligent bus network, and the system comprises a main control module part, a ZigBee slave module part, a temperature and humidity sensor, a vibration sensor, an environment monitoring sensor, a noise sensor, a passenger flow statistics sensor, and a flammable and explosive sensor. The main control module part comprises an MCU control unit, a 4G communication unit, a wired network interface unit, a ZigBee main module unit and a power management unit. The ZiGbee module part comprises a single chip microcomputer control unit, a ZigBee slave module unit, a ZigBee antenna, a 485 communication unit, a 232 communication unit and a CAN bus communication unit. According to the invention, wireless networking between each sensor and the main control module part is omitted, so that data interaction is realized between the sensors and the main control module part; and meanwhile, the complexity of comprehensive wiring in the vehicle is reduced, and signal interference caused by wiring is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle sensors, in particular to a connection method for sensors in a bus in a smart bus network. Background technique [0002] With the gradual improvement of public transportation, in order to improve the safety and happiness of passengers, more and more sensors are integrated on the bus, and these sensors need to be connected with the main control unit of the vehicle, which cannot be integrated in the integrated wiring of the vehicle. It is necessary to divide the routing between the lines. If all the shielded wires are used for routing, the installation cost of the whole vehicle will also be greatly increased, and the interference between the lines cannot be solved. And once a communication failure occurs in a certain peripheral device, the complexity of the project will be greatly increased to troubleshoot the line problem. [0003] ZigBee is a new type of wireless communication technology, suitabl...

AI Technical Summary

Problems solved by technology

[0002] With the gradual improvement of public transportation, in order to improve the safety and happiness of passengers, more and more sensors are integrated on the bus, and these sensors need to be connected with the main control unit of the vehicle, which cannot be integrated in the integrated wiring of the vehicle. Separate the wiring between the lines. If all the shielded lines are used, the installation cost of the whole vehicle will also be greatly increased, and the interference between the lines cannot be solved.

And once a communication failure occurs in a certain peripheral device, the complexity of the project will be greatly increased if the line problem is checked.

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